公开(公告)号：US3744022A

公开(公告)日：1973-07-03

申请号：US3744022D

申请日：1971-12-30

Applicant: VAPOR CORP

Inventor： OLSEN R

IPC: B61D19/02 ,  G08B3/10 ,  B60Q5/00

CPC classification number: G08B3/10 ,  B61D19/026

Abstract: A signal apparatus for use with the moving doors of transit vehicles or the like and which preferably takes the form of an electronic door chime means simulating the tonal quality of electromechanical chimes by using an arrangement of solid state components and thereby eliminating the use of moving parts. The door chime means includes first and second switching means, first and second decaying network responding to the switching means and driving first and second tone generators, and a time delay means between the first and second switching means to sequentially trigger the tone generators.

Abstract translation: 与运输车辆等的移动门一起使用并且优选采用电子门铃形式的信号装置意味着通过使用固态部件的布置来模拟机电铃声的音调质量，从而消除使用移动部件 。 门铃装置包括第一和第二切换装置，响应于切换装置的第一和第二衰减网络以及驱动第一和第二音调发生器，以及第一和第二切换装置之间的时间延迟装置，以顺序地触发音调发生器。

公开(公告)号：DK113221B

公开(公告)日：1969-03-03

申请号：DK497363

申请日：1963-10-22

Applicant: VAPOR CORP

Inventor： HIGGINS P ,  CZARNECKI R ,  OLSEN R

IPC: A62D1/00 ,  C07C17/10 ,  F22B37/42 ,  F22B37/46 ,  F22B37/47 ,  F22G5/00 ,  G01K3/00 ,  G05D23/22 ,  F22F5/00

Abstract: 984,117. Safety shut down systems. VAPOR CORPORATION. Aug. 8, 1963 [May 6, 1963], No. 31297/63. Heading F4B. [Also in Division G4] In tubulous water boiler, a thermocouple is attached to the outlet pipe and exposed to heat from a burner, and the output from the thermocouple is amplified and fed to an electronic trigger circuit to shut down the burner when the surface temperature of the pipe exceeds a predetermined limit. The thermocouple 18 is mounted on the outlet pipe 16 of coiled tube boiler 10 heated by a burner 15, and is mounted so that it is exposed to the combustion gases and radiation from the burner. The thermocouple comprises a constantan wire 21 surrounded by insulation within an iron sheath 23 which is welded into a dimple in the outlet pipe 16, Fig. 5, so that the sheath 23 is maintained at the temperature of the pipe 16. The junction of the thermocouple is located at a hot-spot within the boiler. In another form of thermocouple, Fig. 7, the pipe 16 forms one element of the thermocouple, and a protective cover 29 is welded over the constantan wire 26 and its insulation in a groove in the pipe 16. The output from the thermocouple, compared with a reference voltage, is fed to a magnetic amplifier, and to a transistor trigger circuit, Fig. 8 [not shown). The arrangement is such that, during normal operation, a relay is energized to close contacts in the burner control circuit and maintain contacts in an alarm circuit open. Overheating indicated by the thermocouple, or failure of any of the components of the control circuit de-energizes the relay to cut the burner off and sound an alarm.